Fig. 2From: Hierarchical Nanoflowers on Nanograss Structure for a Non-wettable Surface and a SERS SubstrateFormation of CuO nanostructures. Schematic images of hierarchical CuO flower-like structure, a Cu substrate, b CuO nanograss fabrication in a solution and flower-like floating structures, c 1D CuO nanograss surface, and d 3D CuO nanoflowers on nanograss structureBack to article page